There are more and more mods with temp control. How does it work? Is it worth to consider? Let's see...
Generally the issue is not easy. Why? Among other things, because:
a) resistance of the temperature wire "floats" along with the temperature. And this is regardless of whether the wire is annealed or not. The changes are quite big - see the diagram taken from NiFe30 wire data sheet:
As you can see we shall forget about once set voltage...
